FLINT, MI -- The life sentence for a Mt. Morris man convicted of sexually assaulting his infant daughter has been overturned after an appeals court said it exceeded the state's sentencing guidelines.

Genesee Circuit Judge Geoffrey Neithercut resentenced Daniel Allen Hall Friday, June 27, to 25-50 years in prison after the Michigan Court of Appeals ruled Neithercut's previous life sentence was improper because the judge did not explain on the record why he exceeded the sentencing guidelines.

Hall, 28, was convicted of first-degree criminal sexual conduct, child sexually abusive activity, distributing child sexually abusive materials and communicating with another person over the Internet to commit a crime after Hall admitted that he had sexually abused his then six-month-old daughter.

"We preferred the life sentence," said Genesee County Prosecutor David Leyton. "His crime was a very heinous crime."

Hall's attorney, Daniel Bremer, said Neithercut's new sentence still exceeds the state sentencing guidelines, which called for up to 15 years in prison, but state law requires a mandatory minimum sentence of 25 years for first-degree criminal sexual conduct when the victim is younger than 13.

The new sentence will run consecutive to a four year, nine month to 10 year sentence Hall received for using a computer to commit a crime.

Bremer said his client plans to further appeal his conviction.

Police have said they found more 700 images of child pornography -- including 13 pictures showing Daniel Hall engaging in sex acts with his daughter -- on computers in his home.

Daniel Hall's wife, Alisha Hall, was also previously sentenced to 25-40 years in prison by Neithercut for first-degree criminal sexual conduct after jurors convicted her of photographing the abuse.

Alisha Hall, 29, told authorities that Daniel threatened to harm her and the baby if she didn't go along with the abuse.

The two were arrested after an anonymous Birch Run couple told police in October 2011 that the Halls, through a swingers' website, asked them if they had a young daughter that they were willing to involve in sexual activity.

Birch Run police began investigating and Daniel Hall eventually made the same request to an undercover officer.

Neithercut had tough words for both Halls prior to handing down his original sentences.

"In my 26 years as a judge I have seen dangerous people," Neithercut said to Daniel Hall. "I regard you as one of the most dangerous."

Neithercut also questioned why Alisha Hall did not take steps to protect her child.

Authorities have removed the parental rights of both of the Halls from the abused child and another baby that Alisha Hall had while in custody awaiting trial and the Court of Appeals upheld a Genesee Circuit Court ruling that prevents Daniel Hall and his family from obtaining custody of the two young children.

Daniel Hall is currently lodged at the Gus Harrison Correction Facility in Adrian, while Alisha Hall is serving her time at the Huron Valley Correctional Facility in Ypsilanti.